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                    Introduction
            
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                    第零章：实验环境说明
            
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                    第一章：独立式可执行程序
            
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                    [安装 nightly rust]
            
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                    使用包管理器 cargo 创建 rust binary 项目
            
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                    移除标准库依赖
            
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                    [移除 runtime 依赖]
            
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                    总结与展望
            
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                    第二章：最小化内核
            
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                    使用目标三元组描述目标平台
            
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                    编译、生成内核镜像
            
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                    使用链接脚本指定内存布局
            
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                    [重写程序入口点 -start]
            
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                    [使用 Qemu 运行内核]
            
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                    封装 SBI 接口
            
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                    [实现格式化输出]
            
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                    总结与展望
            
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                    第三章：中断
            
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                    rv64 中断介绍
            
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                    [手动触发断点中断]
            
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                    程序运行上下文环境
            
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                    [实现上下文环境保存与恢复]
            
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                    [时钟中断]
            
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                    总结与展望
            
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                    第四章：内存管理
            
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                    [物理内存探测与管理]
            
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                    [动态内存分配]
            
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        <li class="chapter " data-level="1.6.3" data-path="../chapter4/part3.html">
            
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                    总结与展望
            
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                    第五章：内存虚拟化
            
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                    页表：从虚拟内存到物理内存
            
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                    [内核初始映射]
            
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                    内核重映射
            
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                    内核重映射实现之一：页表
            
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        <li class="chapter " data-level="1.7.5" data-path="../chapter5/part5.html">
            
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                    内核重映射实现之二：MemorySet
            
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                    [内核重映射实现之三：完结]
            
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        <li class="chapter " data-level="1.7.7" data-path="../chapter5/part7.html">
            
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                    总结与展望
            
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        <li class="chapter " data-level="1.8" data-path="../chapter6/introduction.html">
            
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                    第六章：内核线程
            
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        <li class="chapter " data-level="1.8.1" data-path="../chapter6/part1.html">
            
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                    线程状态与保存
            
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                    线程切换
            
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        <li class="chapter " data-level="1.8.3" data-path="../chapter6/part3.html">
            
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                    内核线程初始化
            
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                    [内核线程创建与切换测试]
            
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        <li class="chapter " data-level="1.8.5" data-path="../chapter6/part5.html">
            
                <a href="../chapter6/part5.html">
            
                    
                    总结与展望
            
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        <li class="chapter " data-level="1.9" data-path="../chapter7/introduction.html">
            
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                    第七章：线程调度
            
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                    线程池与线程管理
            
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        <li class="chapter " data-level="1.9.2" data-path="../chapter7/part2.html">
            
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                    内核调度线程 idle
            
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        <li class="chapter " data-level="1.9.3" data-path="../chapter7/part3.html">
            
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                    线程调度之 Round Robin 算法
            
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                    [线程调度测试]
            
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                    总结与展望
            
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                    第八章：进程
            
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                    [编写用户程序]
            
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                    合并内核与应用程序
            
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                    在内核中实现系统调用
            
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                    创建虚拟内存空间
            
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                    [创建进程]
            
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        <li class="chapter " data-level="1.10.6" data-path="../chapter8/part5.html">
            
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                    总结与展望
            
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                    第九章：文件系统
            
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                    [使用文件系统]
            
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                    [实现记事本]
            
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                    [实现终端]
            
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                    [文件读写]
            
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                    总结与展望
            
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                    第十章：同步互斥
            
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                    练习题
            
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                    1. 中断异常
            
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                    2. 物理内存管理
            
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                    3. 虚拟内存管理
            
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                    4. 线程管理
            
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                    5. 用户进程（+ 虚拟内存管理 + 线程管理）
            
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                    6. CPU 调度
            
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                    7. 同步互斥
            
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                    8. 文件系统
            
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                    附录
            
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                    内联汇编
            
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                    安装 rust
            
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</ul>
<h3 id="&#x6253;&#x5305;&#x78C1;&#x76D8;&#x6587;&#x4EF6;">&#x6253;&#x5305;&#x78C1;&#x76D8;&#x6587;&#x4EF6;</h3>
<p>&#x9996;&#x5148;&#x6211;&#x4EEC;&#x5C06;&#x6240;&#x6709;&#x7F16;&#x8BD1;&#x51FA;&#x6765;&#x7684;&#x7528;&#x6237;&#x7A0B;&#x5E8F;&#x653E;&#x5728; <code>usr/build/riscv64/rust</code> &#x6587;&#x4EF6;&#x5939;&#x4E0B;&#xFF0C;&#x5E76;&#x5C06; <code>usr/build/riscv64</code> &#x6587;&#x4EF6;&#x5939;&#x91CC;&#x9762;&#x7684;&#x5185;&#x5BB9;&#x4F7F;&#x7528; <a href="https://github.com/rcore-os/rcore-fs/tree/master/rcore-fs-fuse" target="_blank"><code>rcore-fs-fuse</code>&#x5DE5;&#x5177;</a> &#x6253;&#x5305;&#x6210;&#x4E00;&#x4E2A;&#x78C1;&#x76D8;&#x6587;&#x4EF6;&#xFF0C;&#x7531;&#x4E8E;&#x9009;&#x7528;&#x4E0D;&#x540C;&#x7684;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x78C1;&#x76D8;&#x6587;&#x4EF6;&#x7684;&#x5E03;&#x5C40;&#x4F1A;&#x4E0D;&#x540C;&#xFF0C;&#x6211;&#x4EEC;&#x8FD9;&#x91CC;&#x9009;&#x7528;&#x4E00;&#x4E2A;&#x7B80;&#x5355;&#x7684;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF; <a href="https://github.com/rcore-os/rcore-fs/tree/master/rcore-fs-sfs" target="_blank"><code>SimpleFileSystem</code></a>&#xFF08;&#x7B80;&#x79F0;<strong>SFS</strong>&#xFF09;&#x3002;</p>
<p>&#x78C1;&#x76D8;&#x6587;&#x4EF6;&#x5E03;&#x5C40;&#x4E3A;&#xFF1A;&#x91CC;&#x9762;&#x53EA;&#x6709;&#x4E00;&#x4E2A; <code>rust</code> &#x6587;&#x4EF6;&#x5939;&#xFF0C;&#x91CC;&#x9762;&#x653E;&#x7740;&#x82E5;&#x5E72;&#x7528;&#x6237;&#x7A0B;&#x5E8F;&#x3002;</p>
<p>&#x6211;&#x4EEC;&#x5199;&#x4E00;&#x4E2A; Makefile &#x6765;&#x5B8C;&#x6210;&#x7F16;&#x8BD1;&#x53CA;&#x6253;&#x5305;&#x64CD;&#x4F5C;&#xFF1A;</p>
<pre class="language-"><code class="lang-makefile"><span class="token comment"># usr/Makefile</span>

target <span class="token operator">:=</span> riscv64imac-unknown-none-elf
mode <span class="token operator">:=</span> debug
rust_src_dir <span class="token operator">:=</span> rust/src/bin
rust_target_dir <span class="token operator">:=</span> rust/target/<span class="token variable">$</span><span class="token punctuation">(</span>target<span class="token punctuation">)</span>/<span class="token variable">$</span><span class="token punctuation">(</span>mode<span class="token punctuation">)</span>
rust_srcs <span class="token operator">:=</span> <span class="token variable">$</span><span class="token punctuation">(</span><span class="token keyword">wildcard</span> <span class="token variable">$</span><span class="token punctuation">(</span>rust_src_dir<span class="token punctuation">)</span>/*.rs<span class="token punctuation">)</span>
rust_targets <span class="token operator">:=</span> <span class="token variable">$</span><span class="token punctuation">(</span><span class="token keyword">patsubst</span> <span class="token variable">$</span><span class="token punctuation">(</span>rust_src_dir<span class="token punctuation">)</span>/%.rs, <span class="token variable">$</span><span class="token punctuation">(</span>rust_target_dir<span class="token punctuation">)</span>/%, <span class="token variable">$</span><span class="token punctuation">(</span>rust_srcs<span class="token punctuation">)</span><span class="token punctuation">)</span>
out_dir <span class="token operator">:=</span> build/riscv64
sfsimg <span class="token operator">:=</span> build/riscv64.img
<span class="token builtin">.PHONY</span><span class="token punctuation">:</span> rcore-fs-fuse rust user_img clean

<span class="token symbol">rcore-fs-fuse</span><span class="token punctuation">:</span>
<span class="token keyword">ifeq</span> <span class="token punctuation">(</span><span class="token variable">$</span><span class="token punctuation">(</span><span class="token keyword">shell</span> which rcore-fs-fuse<span class="token punctuation">)</span>,<span class="token punctuation">)</span>
    <span class="token operator">@</span>echo Installing rcore-fs-fuse
<span class="token symbol">    @cargo install rcore-fs-fuse --git https</span><span class="token punctuation">:</span>//github.com/rcore-os/rcore-fs --rev 7f5eeac 
<span class="token keyword">endif</span>

<span class="token symbol">rust</span><span class="token punctuation">:</span>
    <span class="token operator">@</span>cd rust &amp;&amp; cargo build
    <span class="token operator">@</span>echo targets includes <span class="token variable">$</span><span class="token punctuation">(</span>rust_targets<span class="token punctuation">)</span>
    <span class="token operator">@</span>rm -rf <span class="token variable">$</span><span class="token punctuation">(</span>out_dir<span class="token punctuation">)</span>/rust &amp;&amp; mkdir -p <span class="token variable">$</span><span class="token punctuation">(</span>out_dir<span class="token punctuation">)</span>/rust
    <span class="token operator">@</span>rm -f <span class="token variable">$</span><span class="token punctuation">(</span>sfsimg<span class="token punctuation">)</span>
    <span class="token operator">@</span>cp <span class="token variable">$</span><span class="token punctuation">(</span>rust_targets<span class="token punctuation">)</span> <span class="token variable">$</span><span class="token punctuation">(</span>out_dir<span class="token punctuation">)</span>/rust

<span class="token symbol"><span class="token variable">$</span>(sfsimg)</span><span class="token punctuation">:</span> rcore-fs-fuse rust
    <span class="token operator">@</span>rcore-fs-fuse --fs sfs <span class="token variable">$@</span> <span class="token variable">$</span><span class="token punctuation">(</span>out_dir<span class="token punctuation">)</span> zip

<span class="token symbol">user_img</span><span class="token punctuation">:</span> <span class="token variable">$</span><span class="token punctuation">(</span>sfsimg<span class="token punctuation">)</span>

<span class="token symbol">clean</span><span class="token punctuation">:</span>
    <span class="token operator">@</span>rm -rf build/
</code></pre>
<p>&#x4E0A;&#x9762;&#x7684;&#x811A;&#x672C;&#x5982;&#x6CA1;&#x7406;&#x89E3;&#xFF0C;&#x6CA1;&#x6709;&#x5173;&#x7CFB;&#xFF0C;&#x53EA;&#x8981;&#x6211;&#x4EEC;&#x77E5;&#x9053;&#x4F7F;&#x7528; <code>make user_img</code> &#x5373;&#x53EF;&#x5C06;&#x78C1;&#x76D8;&#x6253;&#x5305;&#x5230; <code>usr/build/riscv64.img</code> &#x3002;</p>
<p>&#x968F;&#x540E;&#xFF0C;&#x5C06;&#x5185;&#x6838;&#x7684; Makefile &#x4E2D;&#x94FE;&#x63A5;&#x7684;&#x6587;&#x4EF6;&#x4ECE;&#x539F;&#x6765;&#x7684;&#x53EF;&#x6267;&#x884C;&#x6539;&#x4E3A;&#x73B0;&#x5728;&#x7684;&#x78C1;&#x76D8;&#x955C;&#x50CF;&#xFF0C;&#x8FD9;&#x6837;&#x5C31;&#x53EF;&#x4EE5;&#x628A; OS &#x548C;<code>riscv64.img</code>&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x5408;&#x5E76;&#x5728;&#x4E00;&#x8D77;&#x4E86;&#x3002;</p>
<pre class="language-"><code class="lang-makefile"><span class="token comment"># Makefile</span>

<span class="token comment"># export USER_IMG = usr/rust/target/riscv64imac-unknown-none-elf/debug/hello_world</span>
<span class="token comment"># &#x6539;&#x6210;&#xFF1A;</span>
<span class="token keyword">export</span> USER_IMG <span class="token operator">=</span> usr/build/riscv64.img
</code></pre>
<h3 id="&#x5B9E;&#x73B0;&#x78C1;&#x76D8;&#x8BBE;&#x5907;&#x9A71;&#x52A8;">&#x5B9E;&#x73B0;<em>&#x78C1;&#x76D8;</em>&#x8BBE;&#x5907;&#x9A71;&#x52A8;</h3>
<p>&#x9996;&#x5148;&#x5F15;&#x5165; rust &#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x7684; crate &#xFF1A;</p>
<pre class="language-"><code class="lang-rust"><span class="token comment">// Cargo.toml</span>

rcore<span class="token operator">-</span>fs <span class="token operator">=</span> <span class="token punctuation">{</span> git <span class="token operator">=</span> <span class="token string">&quot;https://github.com/rcore-os/rcore-fs&quot;</span><span class="token punctuation">,</span> rev <span class="token operator">=</span> <span class="token string">&quot;7f5eeac&quot;</span>  <span class="token punctuation">}</span>
rcore<span class="token operator">-</span>fs<span class="token operator">-</span>sfs <span class="token operator">=</span> <span class="token punctuation">{</span> git <span class="token operator">=</span> <span class="token string">&quot;https://github.com/rcore-os/rcore-fs&quot;</span><span class="token punctuation">,</span> rev <span class="token operator">=</span> <span class="token string">&quot;7f5eeac&quot;</span>  <span class="token punctuation">}</span>
</code></pre>
<p>&#x6211;&#x4EEC;&#x77E5;&#x9053;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x9700;&#x8981;&#x7528;&#x5230;&#x5757;&#x8BBE;&#x5907;&#x9A71;&#x52A8;&#x6765;&#x63A7;&#x5236;&#x5E95;&#x5C42;&#x7684;&#x5757;&#x8BBE;&#x5907;&#xFF08;&#x6BD4;&#x5982;&#x78C1;&#x76D8;&#x7B49;&#xFF09;&#x3002;&#x4F46;&#x662F;&#x8FD9;&#x91CC;&#x6211;&#x4EEC;&#x8FD8;&#x662F;&#x7B80;&#x5355;&#x66B4;&#x529B;&#x7684;&#x5C06;<em>&#x78C1;&#x76D8;</em>&#x76F4;&#x63A5;&#x94FE;&#x63A5;&#x5230;&#x5185;&#x6838;&#x4E2D;&#xFF0C;&#x56E0;&#x6B64;&#x8FD9;&#x91CC;&#x7684;<em>&#x78C1;&#x76D8;&#x8BBE;&#x5907;</em>&#x5176;&#x5B9E;&#x5C31;&#x662F;&#x4E00;&#x6BB5;&#x5185;&#x5B58;&#x6A21;&#x62DF;&#x7684;&#x3002;&#x8FD9;&#x53EF;&#x6BD4;&#x5B9E;&#x73B0;&#x771F;&#x5B9E;&#x78C1;&#x76D8;&#x9A71;&#x52A8;&#x8981;&#x7B80;&#x5355;&#x591A;&#x4E86;&#xFF01;&#x4F46;&#x662F;&#xFF0C;&#x6211;&#x4EEC;&#x8FD8;&#x662F;&#x9700;&#x8981;&#x6309;&#x7167;<code>Device</code>&#x63A5;&#x53E3;<code>read_at</code>&#x3001;<code>write_at</code>&#x548C;<code>sync</code>&#x53BB;&#x5B9E;&#x73B0;&#x3002;</p>
<pre class="language-"><code class="lang-rust"><span class="token comment">// src/fs/device.rs</span>
<span class="token keyword">pub</span> <span class="token keyword">struct</span> <span class="token type-definition class-name">MemBuf</span><span class="token punctuation">(</span><span class="token class-name">RwLock</span><span class="token operator">&lt;</span><span class="token operator">&amp;</span><span class="token lifetime-annotation symbol">&apos;static</span> <span class="token keyword">mut</span> <span class="token punctuation">[</span><span class="token keyword">u8</span><span class="token punctuation">]</span><span class="token operator">&gt;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">//&#x4E00;&#x5757;&#x7528;&#x4E8E;&#x6A21;&#x62DF;&#x78C1;&#x76D8;&#x7684;&#x5185;&#x5B58;</span>
<span class="token keyword">impl</span> <span class="token class-name">MemBuf</span> <span class="token punctuation">{</span>
    <span class="token comment">// &#x521D;&#x59CB;&#x5316;&#x53C2;&#x6570;&#x4E3A;&#x78C1;&#x76D8;&#x7684;&#x5934;&#x5C3E;&#x865A;&#x62DF;&#x5730;&#x5740;</span>
    <span class="token keyword">pub</span> <span class="token keyword">unsafe</span> <span class="token keyword">fn</span> <span class="token function-definition function">new</span><span class="token punctuation">(</span>begin<span class="token punctuation">:</span> <span class="token keyword">usize</span><span class="token punctuation">,</span> end<span class="token punctuation">:</span> <span class="token keyword">usize</span><span class="token punctuation">)</span> <span class="token punctuation">-&gt;</span> <span class="token keyword">Self</span> <span class="token punctuation">{</span>
        <span class="token keyword">use</span> <span class="token namespace">core<span class="token punctuation">::</span></span>slice<span class="token punctuation">;</span>
        <span class="token class-name">MemBuf</span><span class="token punctuation">(</span>
            <span class="token comment">// &#x6211;&#x4EEC;&#x4F7F;&#x7528;&#x8BFB;&#x5199;&#x9501;</span>
            <span class="token comment">// &#x53EF;&#x4EE5;&#x6709;&#x591A;&#x4E2A;&#x7EBF;&#x7A0B;&#x540C;&#x65F6;&#x83B7;&#x53D6; &amp; &#x8BFB;</span>
            <span class="token comment">// &#x4F46;&#x662F;&#x4E00;&#x65E6;&#x6709;&#x7EBF;&#x7A0B;&#x83B7;&#x53D6; &amp;mut &#x5199;&#xFF0C;&#x90A3;&#x4E48;&#x5176;&#x4ED6;&#x6240;&#x6709;&#x7EBF;&#x7A0B;&#x90FD;&#x5C06;&#x88AB;&#x963B;&#x585E;</span>
            <span class="token class-name">RwLock</span><span class="token punctuation">::</span><span class="token function">new</span><span class="token punctuation">(</span>
                <span class="token namespace">slice<span class="token punctuation">::</span></span><span class="token function">from_raw_parts_mut</span><span class="token punctuation">(</span>&#x3000;begin <span class="token keyword">as</span> <span class="token operator">*</span><span class="token keyword">mut</span> <span class="token keyword">u8</span><span class="token punctuation">,</span> end <span class="token operator">-</span> begin<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
        <span class="token punctuation">...</span>

<span class="token comment">// &#x4F5C;&#x4E3A;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x6240;&#x7528;&#x7684;&#x8BBE;&#x5907;&#x9A71;&#x52A8;&#xFF0C;&#x53EA;&#x9700;&#x5B9E;&#x73B0;&#x4E0B;&#x9762;&#x4E09;&#x4E2A;&#x63A5;&#x53E3;</span>
<span class="token comment">// &#x800C;&#x5728;&#x8BBE;&#x5907;&#x5B9E;&#x9645;&#x4E0A;&#x662F;&#x5185;&#x5B58;&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;&#x5B9E;&#x73B0;&#x53D8;&#x7684;&#x6781;&#x5176;&#x7B80;&#x5355;</span>
<span class="token keyword">impl</span> <span class="token class-name">Device</span> <span class="token keyword">for</span> <span class="token class-name">MemBuf</span> <span class="token punctuation">{</span>
    <span class="token keyword">fn</span> <span class="token function-definition function">read_at</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">,</span> offset<span class="token punctuation">:</span> <span class="token keyword">usize</span><span class="token punctuation">,</span> buf<span class="token punctuation">:</span> <span class="token operator">&amp;</span><span class="token keyword">mut</span> <span class="token punctuation">[</span><span class="token keyword">u8</span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token punctuation">-&gt;</span> <span class="token class-name">Result</span><span class="token operator">&lt;</span><span class="token keyword">usize</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
        <span class="token keyword">let</span> slice <span class="token operator">=</span> <span class="token keyword">self</span><span class="token punctuation">.</span><span class="token number">0</span><span class="token punctuation">.</span><span class="token function">read</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">let</span> len <span class="token operator">=</span> buf<span class="token punctuation">.</span><span class="token function">len</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">min</span><span class="token punctuation">(</span>slice<span class="token punctuation">.</span><span class="token function">len</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">-</span> offset<span class="token punctuation">)</span><span class="token punctuation">;</span>
        buf<span class="token punctuation">[</span><span class="token punctuation">..</span>len<span class="token punctuation">]</span><span class="token punctuation">.</span><span class="token function">copy_from_slice</span><span class="token punctuation">(</span><span class="token operator">&amp;</span>slice<span class="token punctuation">[</span>offset<span class="token punctuation">..</span>offset <span class="token operator">+</span> len<span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token class-name">Ok</span><span class="token punctuation">(</span>len<span class="token punctuation">)</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">fn</span> <span class="token function-definition function">write_at</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">,</span> offset<span class="token punctuation">:</span> <span class="token keyword">usize</span><span class="token punctuation">,</span> buf<span class="token punctuation">:</span> <span class="token operator">&amp;</span><span class="token punctuation">[</span><span class="token keyword">u8</span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token punctuation">-&gt;</span> <span class="token class-name">Result</span><span class="token operator">&lt;</span><span class="token keyword">usize</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
        <span class="token keyword">let</span> <span class="token keyword">mut</span> slice <span class="token operator">=</span> <span class="token keyword">self</span><span class="token punctuation">.</span><span class="token number">0</span><span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">let</span> len <span class="token operator">=</span> buf<span class="token punctuation">.</span><span class="token function">len</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">min</span><span class="token punctuation">(</span>slice<span class="token punctuation">.</span><span class="token function">len</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">-</span> offset<span class="token punctuation">)</span><span class="token punctuation">;</span>
        slice<span class="token punctuation">[</span>offset<span class="token punctuation">..</span>offset <span class="token operator">+</span> len<span class="token punctuation">]</span><span class="token punctuation">.</span><span class="token function">copy_from_slice</span><span class="token punctuation">(</span><span class="token operator">&amp;</span>buf<span class="token punctuation">[</span><span class="token punctuation">..</span>len<span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token class-name">Ok</span><span class="token punctuation">(</span>len<span class="token punctuation">)</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">fn</span> <span class="token function-definition function">sync</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">)</span> <span class="token punctuation">-&gt;</span> <span class="token class-name">Result</span><span class="token operator">&lt;</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
        <span class="token class-name">Ok</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<h3 id="&#x6253;&#x5F00;-sfs-&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;">&#x6253;&#x5F00; SFS &#x6587;&#x4EF6;&#x7CFB;&#x7EDF;</h3>
<p>&#x5728;&#x8FD0;&#x884C; OS &#x4E4B;&#x524D;&#xFF0C;&#x6211;&#x4EEC;&#x5DF2;&#x7ECF;&#x901A;&#x8FC7;<a href="https://github.com/rcore-os/rcore-fs/tree/master/rcore-fs-fuse" target="_blank"><code>rcore-fs-fuse</code>&#x5DE5;&#x5177;</a> &#x628A;&#x5305;&#x542B;&#x7528;&#x6237;&#x7A0B;&#x5E8F;&#x7684;&#x591A;&#x4E2A;&#x6587;&#x4EF6;&#x6253;&#x5305;&#x6210;&#x4E00;&#x4E2A; <a href="https://github.com/rcore-os/rcore-fs/tree/master/rcore-fs-sfs" target="_blank"><code>SimpleFileSystem</code></a>&#x683C;&#x5F0F;&#x7684;&#x78C1;&#x76D8;&#x6587;&#x4EF6;<code>riscv64.img</code>&#x3002;bootloader &#x542F;&#x52A8;&#x540E;&#xFF0C;&#x628A; OS &#x548C; riscv64.img &#x52A0;&#x8F7D;&#x5230;&#x5185;&#x5B58;&#x4E2D;&#x4E86;&#x3002;&#x5728;&#x521D;&#x59CB;&#x5316;&#x9636;&#x6BB5;&#xFF0C;OS &#x4E3A;&#x4E86;&#x80FD;&#x591F;&#x8BFB;&#x53D6;<code>riscv64.img</code>&#xFF0C;&#x9700;&#x8981;&#x4F7F;&#x7528;<code>rcore_fs_sfs::SimpleFileSystem::open(device)</code>&#x65B9;&#x6CD5;&#x6253;&#x5F00;&#x78C1;&#x76D8;&#x5E76;&#x8FDB;&#x884C;&#x521D;&#x59CB;&#x5316;&#xFF0C;&#x8FD9;&#x6837;&#x540E;&#x7EED;&#x5C31;&#x53EF;&#x4EE5;&#x8BFB;&#x53D6;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x4E2D;&#x7684;&#x76EE;&#x5F55;&#x548C;&#x6587;&#x4EF6;&#x4E86;&#x3002;</p>
<pre class="language-"><code class="lang-rust"><span class="token comment">// src/fs/mod.rs</span>
<span class="token macro property">lazy_static!</span> <span class="token punctuation">{</span>
    <span class="token keyword">pub</span> <span class="token keyword">static</span> <span class="token keyword">ref</span> <span class="token constant">ROOT_INODE</span><span class="token punctuation">:</span> <span class="token class-name">Arc</span><span class="token operator">&lt;</span><span class="token keyword">dyn</span> <span class="token class-name">INode</span><span class="token operator">&gt;</span> <span class="token operator">=</span> <span class="token punctuation">{</span>
        <span class="token comment">// &#x521B;&#x5EFA;&#x5185;&#x5B58;&#x6A21;&#x62DF;&#x7684;&quot;&#x78C1;&#x76D8;&quot;&#x8BBE;&#x5907;</span>
        <span class="token keyword">let</span> device <span class="token operator">=</span> <span class="token punctuation">{</span>
            <span class="token punctuation">...</span>
            <span class="token keyword">let</span> start <span class="token operator">=</span> _user_img_start <span class="token keyword">as</span> <span class="token keyword">usize</span><span class="token punctuation">;</span>
            <span class="token keyword">let</span> end <span class="token operator">=</span> _user_img_end <span class="token keyword">as</span> <span class="token keyword">usize</span><span class="token punctuation">;</span>
            <span class="token class-name">Arc</span><span class="token punctuation">::</span><span class="token function">new</span><span class="token punctuation">(</span><span class="token keyword">unsafe</span> <span class="token punctuation">{</span> <span class="token namespace">device<span class="token punctuation">::</span></span><span class="token class-name">MemBuf</span><span class="token punctuation">::</span><span class="token function">new</span><span class="token punctuation">(</span>start<span class="token punctuation">,</span> end<span class="token punctuation">)</span> <span class="token punctuation">}</span><span class="token punctuation">)</span>
        <span class="token punctuation">}</span><span class="token punctuation">;</span>
        <span class="token comment">// &#x7531;&#x4E8E;&#x6211;&#x4EEC;&#x5728;&#x6253;&#x5305;&#x78C1;&#x76D8;&#x6587;&#x4EF6;&#x65F6;&#x5C31;&#x4F7F;&#x7528; SimpleFileSystem</span>
        <span class="token comment">// &#x6240;&#x4EE5;&#x6211;&#x4EEC;&#x5FC5;&#x987B;&#x4F7F;&#x7528;&#x7B80;&#x5355;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF; SimpleFileSystem &#x6253;&#x5F00;&#x8BE5;&#x8BBE;&#x5907;&#x8FDB;&#x884C;&#x521D;&#x59CB;&#x5316;</span>
        <span class="token keyword">let</span> sfs <span class="token operator">=</span> <span class="token class-name">SimpleFileSystem</span><span class="token punctuation">::</span><span class="token function">open</span><span class="token punctuation">(</span>device<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">expect</span><span class="token punctuation">(</span><span class="token string">&quot;failed to open SFS&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token comment">// &#x8FD4;&#x56DE;&#x8BE5;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x7684;&#x6839; INode</span>
        sfs<span class="token punctuation">.</span><span class="token function">root_inode</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token keyword">pub</span> <span class="token keyword">trait</span> <span class="token class-name">INodeExt</span> <span class="token punctuation">{</span>
    <span class="token keyword">fn</span> <span class="token function-definition function">read_as_vec</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">)</span> <span class="token punctuation">-&gt;</span> <span class="token class-name">Result</span><span class="token operator">&lt;</span><span class="token class-name">Vec</span><span class="token operator">&lt;</span><span class="token keyword">u8</span><span class="token operator">&gt;&gt;</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token keyword">impl</span> <span class="token class-name">INodeExt</span> <span class="token keyword">for</span> <span class="token keyword">dyn</span> <span class="token class-name">INode</span> <span class="token punctuation">{</span>
    <span class="token comment">// &#x5C06;&#x8FD9;&#x4E2A; INode &#x5BF9;&#x5E94;&#x7684;&#x6587;&#x4EF6;&#x8BFB;&#x53D6;&#x5230;&#x4E00;&#x4E2A;&#x6570;&#x7EC4;&#x4E2D;</span>
    <span class="token keyword">fn</span> <span class="token function-definition function">read_as_vec</span><span class="token punctuation">(</span><span class="token operator">&amp;</span><span class="token keyword">self</span><span class="token punctuation">)</span> <span class="token punctuation">-&gt;</span> <span class="token class-name">Result</span><span class="token operator">&lt;</span><span class="token class-name">Vec</span><span class="token operator">&lt;</span><span class="token keyword">u8</span><span class="token operator">&gt;&gt;</span> <span class="token punctuation">{</span>
        <span class="token keyword">let</span> size <span class="token operator">=</span> <span class="token keyword">self</span><span class="token punctuation">.</span><span class="token function">metadata</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">?</span><span class="token punctuation">.</span>size<span class="token punctuation">;</span>
        <span class="token keyword">let</span> <span class="token keyword">mut</span> buf <span class="token operator">=</span> <span class="token class-name">Vec</span><span class="token punctuation">::</span><span class="token function">with_capacity</span><span class="token punctuation">(</span>size<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">unsafe</span> <span class="token punctuation">{</span> buf<span class="token punctuation">.</span><span class="token function">set_len</span><span class="token punctuation">(</span>size<span class="token punctuation">)</span><span class="token punctuation">;</span>&#x3000;<span class="token comment">/*???*/</span> <span class="token punctuation">}</span>
        <span class="token keyword">self</span><span class="token punctuation">.</span><span class="token function">read_at</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">,</span> buf<span class="token punctuation">.</span><span class="token function">as_mut_slice</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token operator">?</span><span class="token punctuation">;</span>
        <span class="token class-name">Ok</span><span class="token punctuation">(</span>buf<span class="token punctuation">)</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>

<span class="token keyword">pub</span> <span class="token keyword">fn</span> <span class="token function-definition function">init</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">&quot;available programs in rust/ are:&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">let</span> <span class="token keyword">mut</span> id <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span>
    <span class="token comment">// &#x67E5;&#x627E; rust &#x6587;&#x4EF6;&#x5939;&#x5E76;&#x8FD4;&#x56DE;&#x5176;&#x5BF9;&#x5E94;&#x7684; INode</span>
    <span class="token keyword">let</span> <span class="token keyword">mut</span> rust_dir <span class="token operator">=</span> <span class="token constant">ROOT_INODE</span><span class="token punctuation">.</span><span class="token function">lookup</span><span class="token punctuation">(</span><span class="token string">&quot;rust&quot;</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">unwrap</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token comment">// &#x904D;&#x5386;&#x91CC;&#x9762;&#x7684;&#x6587;&#x4EF6;&#x5E76;&#x8F93;&#x51FA;</span>
    <span class="token comment">// &#x5B9E;&#x9645;&#x4E0A;&#x6253;&#x5370;&#x4E86;&#x6240;&#x6709; rust &#x76EE;&#x5F55;&#x4E0B;&#x7684;&#x7528;&#x6237;&#x7A0B;&#x5E8F;</span>
    <span class="token keyword">while</span> <span class="token keyword">let</span> <span class="token class-name">Ok</span><span class="token punctuation">(</span>name<span class="token punctuation">)</span> <span class="token operator">=</span> rust_dir<span class="token punctuation">.</span><span class="token function">get_entry</span><span class="token punctuation">(</span>id<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        id <span class="token operator">+=</span> <span class="token number">1</span><span class="token punctuation">;</span>
        <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">&quot;  {}&quot;</span><span class="token punctuation">,</span> name<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">&quot;++++ setup fs! ++++&quot;</span><span class="token punctuation">)</span>
<span class="token punctuation">}</span>
</code></pre>
<blockquote>
<p><strong>[info]<code>lazy_static!</code> &#x5B8F;</strong></p>
<p>&#x8FD9;&#x91CC;&#x7684; <code>lazy_static!</code> &#x5B8F;&#x6307;&#x7684;&#x662F;&#x7B49;&#x5230;&#x5B9E;&#x9645;&#x7528;&#x5230;&#x7684;&#x65F6;&#x5019;&#x518D;&#x5BF9;&#x91CC;&#x9762;&#x7684;&#x5168;&#x5C40;&#x53D8;&#x91CF;&#x8FDB;&#x884C;&#x521D;&#x59CB;&#x5316;&#xFF0C;&#x800C;&#x975E;&#x5728;&#x7F16;&#x8BD1;&#x65F6;&#x521D;&#x59CB;&#x5316;&#x3002;</p>
<p>&#x8FD9;&#x901A;&#x5E38;&#x7528;&#x4E8E;&#x4E0D;&#x53EF;&#x53D8;&#x7684;&#x67D0;&#x5168;&#x5C40;&#x53D8;&#x91CF;&#x521D;&#x59CB;&#x5316;&#x4F9D;&#x8D56;&#x4E8E;&#x8FD0;&#x884C;&#x65F6;&#x7684;&#x67D0;&#x4E9B;&#x4E1C;&#x897F;&#xFF0C;&#x6545;&#x5728;&#x7F16;&#x8BD1;&#x65F6;&#x65E0;&#x6CD5;&#x521D;&#x59CB;&#x5316;&#xFF1B;&#x4F46;&#x662F;&#x82E5;&#x5728;&#x8FD0;&#x884C;&#x65F6;&#x4FEE;&#x6539;&#x5B83;&#x7684;&#x503C;&#x8D77;&#x5230;&#x521D;&#x59CB;&#x5316;&#x7684;&#x6548;&#x679C;&#xFF0C;&#x90A3;&#x4E48;&#x7531;&#x4E8E;&#x5B83;&#x53D1;&#x751F;&#x4E86;&#x53D8;&#x5316;&#x4E0D;&#x5F97;&#x4E0D;&#x5C06;&#x5176;&#x58F0;&#x660E;&#x4E3A; <code>static mut</code>&#xFF0C;&#x4F17;&#x6240;&#x5468;&#x77E5;&#x8FD9;&#x662F; <code>unsafe</code> &#x7684;&#xFF0C;&#x5373;&#x4F7F;&#x4E0D;&#x4F1A;&#x51FA;&#x95EE;&#x9898;&#x4E5F;&#x5F88;&#x4E0D;&#x4F18;&#x96C5;&#x3002;&#x5728;&#x8FD9;&#x79CD;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;&#x4F7F;&#x7528; <code>lazy_static!</code> &#x5C31;&#x662F;&#x4E00;&#x79CD;&#x8F83;&#x4E3A;&#x7406;&#x60F3;&#x7684;&#x65B9;&#x6848;&#x3002;</p>
</blockquote>
<h3 id="&#x52A0;&#x8F7D;&#x5E76;&#x8FD0;&#x884C;&#x7528;&#x6237;&#x7A0B;&#x5E8F;">&#x52A0;&#x8F7D;&#x5E76;&#x8FD0;&#x884C;&#x7528;&#x6237;&#x7A0B;&#x5E8F;</h3>
<p>&#x90A3;&#x4E48;&#x73B0;&#x5728;&#x6211;&#x4EEC;&#x5C31;&#x53EF;&#x4EE5;&#x7528;&#x53E6;&#x4E00;&#x79CD;&#x65B9;&#x5F0F;&#x52A0;&#x8F7D;&#x7528;&#x6237;&#x7A0B;&#x5E8F;&#x4E86;&#xFF01;</p>
<pre class="language-"><code class="lang-rust"><span class="token comment">// src/process/mod.rs</span>

<span class="token keyword">use</span> <span class="token keyword">crate</span><span class="token module-declaration namespace"><span class="token punctuation">::</span>fs<span class="token punctuation">::</span></span><span class="token punctuation">{</span>
    <span class="token constant">ROOT_INODE</span><span class="token punctuation">,</span>
    <span class="token class-name">INodeExt</span>
<span class="token punctuation">}</span><span class="token punctuation">;</span>

<span class="token keyword">pub</span> <span class="token keyword">fn</span> <span class="token function-definition function">init</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token punctuation">...</span>
    <span class="token keyword">let</span> data <span class="token operator">=</span> <span class="token constant">ROOT_INODE</span>
        <span class="token punctuation">.</span><span class="token function">lookup</span><span class="token punctuation">(</span><span class="token string">&quot;rust/hello_world&quot;</span><span class="token punctuation">)</span>
        <span class="token punctuation">.</span><span class="token function">unwrap</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
        <span class="token punctuation">.</span><span class="token function">read_as_vec</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
        <span class="token punctuation">.</span><span class="token function">unwrap</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">let</span> user_thread <span class="token operator">=</span> <span class="token keyword">unsafe</span> <span class="token punctuation">{</span> <span class="token class-name">Thread</span><span class="token punctuation">::</span><span class="token function">new_user</span><span class="token punctuation">(</span>data<span class="token punctuation">.</span><span class="token function">as_slice</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">}</span><span class="token punctuation">;</span>
    <span class="token constant">CPU</span><span class="token punctuation">.</span><span class="token function">add_thread</span><span class="token punctuation">(</span>user_thread<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">...</span>
<span class="token punctuation">}</span>
</code></pre>
<p>&#x5F53;&#x7136;&#xFF0C;&#x522B;&#x5FD8;&#x4E86;&#x5728;&#x8FD9;&#x4E4B;&#x524D;&#x521D;&#x59CB;&#x5316;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#xFF01;</p>
<pre class="language-"><code class="lang-rust"><span class="token comment">// src/init.rs</span>

<span class="token attribute attr-name">#[no_mangle]</span>
<span class="token keyword">pub</span> <span class="token keyword">extern</span> <span class="token string">&quot;C&quot;</span> <span class="token keyword">fn</span> <span class="token function-definition function">rust_main</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">-&gt;</span> <span class="token operator">!</span> <span class="token punctuation">{</span>
    <span class="token keyword">crate</span><span class="token module-declaration namespace"><span class="token punctuation">::</span>interrupt<span class="token punctuation">::</span></span><span class="token function">init</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

    <span class="token keyword">extern</span> <span class="token string">&quot;C&quot;</span> <span class="token punctuation">{</span>
        <span class="token keyword">fn</span> <span class="token function-definition function">end</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">crate</span><span class="token module-declaration namespace"><span class="token punctuation">::</span>memory<span class="token punctuation">::</span></span><span class="token function">init</span><span class="token punctuation">(</span>
        <span class="token punctuation">(</span><span class="token punctuation">(</span>end <span class="token keyword">as</span> <span class="token keyword">usize</span> <span class="token operator">-</span> <span class="token constant">KERNEL_BEGIN_VADDR</span> <span class="token operator">+</span> <span class="token constant">KERNEL_BEGIN_PADDR</span><span class="token punctuation">)</span> <span class="token operator">&gt;&gt;</span> <span class="token number">12</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token number">1</span><span class="token punctuation">,</span>
        <span class="token constant">PHYSICAL_MEMORY_END</span> <span class="token operator">&gt;&gt;</span> <span class="token number">12</span>
    <span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">crate</span><span class="token module-declaration namespace"><span class="token punctuation">::</span>fs<span class="token punctuation">::</span></span><span class="token function">init</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">crate</span><span class="token module-declaration namespace"><span class="token punctuation">::</span>process<span class="token punctuation">::</span></span><span class="token function">init</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">crate</span><span class="token module-declaration namespace"><span class="token punctuation">::</span>timer<span class="token punctuation">::</span></span><span class="token function">init</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">crate</span><span class="token module-declaration namespace"><span class="token punctuation">::</span>process<span class="token punctuation">::</span></span><span class="token function">run</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">loop</span> <span class="token punctuation">{</span><span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<p>&#x6211;&#x4EEC;&#x4F7F;&#x7528; <code>make run</code> &#x8FD0;&#x884C;&#x4E00;&#x4E0B;&#xFF0C;&#x53EF;&#x4EE5;&#x53D1;&#x73B0;&#x7A0B;&#x5E8F;&#x7684;&#x8FD0;&#x884C;&#x7ED3;&#x679C;&#x4E0E;&#x4E0A;&#x4E00;&#x8282;&#x4E00;&#x81F4;&#x3002;</p>
<p>&#x5982;&#x679C;&#x8FD0;&#x884C;&#x6709;&#x95EE;&#x9898;&#x7684;&#x8BDD;&#xFF0C;&#x53EF;&#x4EE5;&#x5728;<a href="https://github.com/rcore-os/rCore_tutorial/tree/ch9-pa1" target="_blank">&#x8FD9;&#x91CC;</a>&#x627E;&#x5230;&#x4EE3;&#x7801;&#x3002;</p>
<p>&#x53EA;&#x4E0D;&#x8FC7;&#xFF0C;&#x6211;&#x4EEC;&#x4ECE;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x89E3;&#x6790;&#x51FA;&#x8981;&#x6267;&#x884C;&#x7684;&#x7A0B;&#x5E8F;&#x3002;&#x6211;&#x4EEC;&#x53EF;&#x4EE5;&#x770B;&#x5230; <code>rust</code> &#x6587;&#x4EF6;&#x5939;&#x4E0B;&#x6253;&#x5305;&#x4E86;&#x54EA;&#x4E9B;&#x7528;&#x6237;&#x7A0B;&#x5E8F;&#xFF1A;</p>
<blockquote>
<p><strong>[success] &#x78C1;&#x76D8;&#x6253;&#x5305;&#x4E0E;&#x89E3;&#x6790;</strong></p>
<pre class="language-"><code class="lang-rust">available programs <span class="token keyword">in</span> rust<span class="token operator">/</span> are<span class="token punctuation">:</span>
  <span class="token punctuation">.</span>
  <span class="token punctuation">..</span>
  model
  hello_world
</code></pre>
</blockquote>
<p>&#x4F46;&#x662F;&#x73B0;&#x5728;&#x95EE;&#x9898;&#x5728;&#x4E8E;&#x6211;&#x4EEC;&#x8FD0;&#x884C;&#x4EC0;&#x4E48;&#x7A0B;&#x5E8F;&#x662F;&#x786C;&#x7F16;&#x7801;&#x5230;&#x5185;&#x6838;&#x4E2D;&#x7684;&#x3002;&#x6211;&#x4EEC;&#x80FD;&#x4E0D;&#x80FD;&#x5B9E;&#x73B0;&#x4E00;&#x4E2A;&#x4EA4;&#x4E92;&#x5F0F;&#x7684;&#x7EC8;&#x7AEF;&#xFF0C;&#x544A;&#x8BC9;&#x5185;&#x6838;&#x6211;&#x4EEC;&#x60F3;&#x8981;&#x8FD0;&#x884C;&#x54EA;&#x4E2A;&#x7A0B;&#x5E8F;&#x5462;&#xFF1F;&#x63A5;&#x4E0B;&#x6765;&#x6211;&#x4EEC;&#x5C31;&#x6765;&#x505A;&#x8FD9;&#x4EF6;&#x4E8B;&#x60C5;&#xFF01;</p>
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